This week, we learnt how to find the equation of a straight line. The equation for a straight line is y=mx+b.
We know the x and y represent any coordinate on the line. But what does the m and b mean?
First off, b is the point where the line intercepts the y axis, also known as the y intercept. On this graph, it crosses at -6. So, b=-6.
Next, the m. M is the slope of the line. This can be calculated by how high the line goes divided by how far to the right the line goes in between 2 points.
Here, it is 6/5. So, m=6/5.
Therefore, our final equation looks like y=(6/5)x+(-6)
All slope y-intercept equations will follow this pattern.